jojjelito
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Posts posted by jojjelito
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Deffo interested in a window or two once available.
/J
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Interesting this "all the great gear was made in the 70's and 80's and didn't need no stinkeen switch-mode supplies" :) Technology evolves, but a beefy toroid is just like a V8 - it's nice and chunky.
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Hehe, sounds luscious this little blue-green FM boxxah!
This jet airliner cockpit dashboard of a programmer (it can also run a nuclear power plant!) is tempting. Just imagine being able to walk into this entire room in your basement which controls your FM mania...
But, don't pimp your GF. Sell her and get moar gear...
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Kawai K5000 has the nicest, fastest, lightest (without feeling flimsy) keyboard mechanisms ever! It's definitely a synth-player keyboard. Classical weighted piano keys are better catered for elsewhere... Plus it's a *very* nice sounding and good-looking synth! Get one off Evil-bay, Craigslist or whatever serves your area. The E4K had the same Fatar mechanism I think.
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Nope, that 12V to 9VDC transformation sounds about right. The trick is that one of the PSU setup variants lifts the virtual ground of the 7809 with +5VDC to obtain 14V. That's referred to as PSU option B if referring to the MB6582. If you're rolling your own baseboard you could still nick a few ideas from there. 14V would only be needed from 6581 chips anyway.
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Good thing that a big catfight seems avoided and that cooler heads prevail, but I was going to get the popcorn...
Seriously though, stick around for a while! You might get a feel for how this community reasons, and why it would seem less enticing to bring on board lots of people using MIDIbox for school projects for instance. Short on time and needing something very much ready-made, just tweak it and presto! This would stress those in the know too much. This is not about instant gratification, more like read, read again, search. Do something simple, fail, debug, learn. Rinse and repeat some, then hopefully contribute.
Best of luck with your endeavours!
/J
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That's a really nice build! Plus thanks for sharing your sticker/adhesive panelling technique! Hmm...
Those Optrex LCDs really shine! Costly, but they were totally worth it IMHO.
/J
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Hmm, I think you're on to something. Weird
J2 on the Aout board is for reading data/statuses etc back to the core. Or you could daisy-chain em: J2->J1 of Aout 2 u.s.w. But, that's not supported by the applications as of now.
But but but, if you want full stereo on each SID pair, you'll end up using 2x SSM2164 boards for octal VCA fun. For mono you could get away with mixing each SID pair and sending that to each VCA.
But, please draw away. I've been meaning to do something of that sort, but OLED and PSU first...
Burp!
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Hi Rosch,
Pin 4 of J2 would be Dout, e.g. for chaining multiple AOUTs to one core, I think you mean Pin 4 of J1? Anyways, the Wiki says that even chaining is not supported by any existing apps.
If I understand things correctly the TLV runs SPI. SPI is not a multi-master bus, so there's no collision handling if several cores would like to write data to it at the same time. Had this been doing I2C that would have been fixable, but the SID portion of the app also doesn't share envelope, LFOs or such data globally across themselves. Therefore each core only knows what it is doing, not the status of others unless MB-NET got extended. All this is AFAIK, TK or other gurus could say otherwise.
Also, this has been stated before in the forums
But, on a positive note: You could share the quad VCA board across since each VCA has its own CVs, just connect those where applicable. However, the full-on 4-pair stereo SSM filtering requires 4x dual SSM2044 PCBs, along with 8 SSM 2044ICs and all the rest.It could end up being costly, but given the lengths people will go to pimping their SID synths, why not?
Cheers,
J
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Would you then control the SSM2044 from the MB6582's control panel? Does the SID generate the envelope for the filters?
The SID doesn't control the VCFs, that's done by the 4 core modules. Env and VCF data is local to each core (no, it's not shared from a "master" CPU via CAN) so you'll need one AOUT_NG per core if you want the full custom shine. AFAIK the AOUT_NG is connected using I2C SPI to the core, I don't think that's set up as a multi master bus as is. Perhaps TK, Wilba or one of the guru's can tell us if that will change later down the road?
The connection is: Core -> SID, Core -> Aout, SID Audio -> VCF/VCA, AOUT CV -> VCF/VCA. Plus control bits as necessary using the available port headers at each core.
Best,
J
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Bitte, einer neuen Version zum LPC nespresso präsentieren! Das macht bestimmt riesen Spass :sorcerer:
Gruss, J.
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If you poke around the treads you'll end up with this blank panel for instance. Also, there's some Illustrator files to be had, but those include 1/8 inch bleed.
Otherwise, there's some dxf download available at Ladyada's.
Cheers,
Google-fu
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Hmm, I didn't check the controller datasheet that thoroughly, just figured I'd post a link in case someone would be helped by it. It seems that Newhaven will have some explaining to do, or better provide some kind of app note or even an SDK. Let's hope they'll see this and come back with answers.
Edit: Seems Newhaven answered - App note here.
/Il scuro
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Hmm, it seems that SSD1322.pdf was only advance info. Maybe Newhave have some extra timing values in store for future use?
Voxel space: Bring back Amiga!
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I have a few in my cart over at DigiKey, will finalize the order after the weekend. I'm about to give the 6582 the OLED treatment, plus some Shruthis, maybe even the Prophet VS. Stay tuned :frantics:
If you don't get these, you can get them from Electronic Assembly or similar modules directly from Truly, but they don't sell direct to consumer.
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ZX Spectrum cases look fantastic still in this day and age. Spectrum 128K with the visible heatsink looks like expensive UK hifi gear. Congrats on your build!
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Congrats on your SID-101! It's looking mighty fine!
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Mucho appreciated, thanks for taking the time to sort this! Kudos!
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Aww, I didn't mean to be sarcastic :console: Sorry 'bout that.
The question just baffled me. Anywho, direct voltage (always on) is another option, discrete transistors, transistor arrays (3046, or ULN 200x for larger loads) etc are there for the sidmonster to look at. Or, use CD4000-stylee logic (DON'T confuse with 74HC4xxx!) like so: RG Keen explains.
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Plus the jewel case plastic is brittle and scratches when someone looks at it the wrong way :hmm:
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There's this thing called a transistor :geek:
Just saying.
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Ahh, you're seeing it like that. My idea was that any adjustment sanding should be done on the front panel hole - but that's something we want to avoid if we can. Guess that we won't have any sloshing around if one uses a bit of superglue magic. Instead we get grime buildup galore in the small crack between the plexi and metal...
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The office Mitutoyo slider concurs with those measurements on my front panel. The trick wrt tolerances here is that if we get the window top made to 82.95mm by 31.95mm we'll end up with a piece of plastic that sloshes around. If the plastic is cut exact to boot, we can easily sand the panel cutout in case it's just a hair-width too small.
Then again, I'm no mechanical engineer so the esteemed reader should feel free to enlighten us all if you're in the know.
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You might want to look into getting a 2x16 LCD for debugging and display purposes while developing. Suppose for instance that you may want to store a few presets of what the controllers do, MIDI channel setup for your controller etc. It's only a few euro/dollars/pounds.
Your "switchpots" are rotary switches. Look at getting some Lorlin CK-series rotary switches (1pin per pos), or get some Grayhill mechanical encoders like the 25LB22 (16pos) if you rather need an easy (few pins) binary interface. The Lorlins are usually 12-pos, but you can set the number of stops yourself to suit.
Cheers!
Custom Power Supply for mb6582
in MIDIbox SID
Posted · Edited by jojjelito
Great idea - it can double up as a great foot-warmer
There's no stopping that gravy train once summer is gone.